Rossi single shot rifle

Does any one have a Rossi single shot chambered in 7.63 x 39 that will not fire the wolf steel case ammo mine will punch the primer good but they will not fire. I can take any brass cased ammo and it will fire fine. I was thinking my firing pin may be wore down.any help would be appreciated.

The main complaint I have heard about Rossi single shots is light pin strikes, even on brass in some cases. I know of several folks that bought Rossi 243's for their kids first deer rifle having to take the gun to a 'smith to get it to reliably fire off the shelf hunting ammo.